Marine biology

“Jason de Caires Taylor’s underwater sculptures create a unique, absorbing and expansive visual seascape. Highlighting natural ecological processes Taylor’s interventions explore the intricate relationships that exist between art and environment. His works become artificial reefs, attracting marine life, while offering the viewer privileged temporal encounters, as the shifting sand of the ocean floor, and the works change from moment to moment.

The ocean is imbued with mystery. Underwater and devoid of white walls the viewer is unrestrained in their interaction with the work. Buoyancy and weightlessness enable a detached physical experience, encouraging encounters that are perceptual and personal. As time passes and the works change, they reshape and redefine the underwater landscape in unpredictable ways.”

“Oceans teem with microscopic organisms that are constantly drifting down towards the sea bed, attaching to and colonising on the way any hard secure surface, such as rock outcrops, and thereby creating the basis of a natural reef. Coral reefs attract an array of marine life (such as colourful fish, turtles, sea urchins, sponges, and sharks) and also provide enclosed spaces for sea creatures to breed or take refuge.

Only about 10 – 15% of the sea bed has a solid enough substratum to allow reefs to form naturally. In order to increase the number of reefs in these areas artificial reefs have recently been created from materials that are durable, secure and environmentally sensitive. These reefs appear to have been successful in that they have attracted coral growth which, in turn, can support an entire marine ecosystem.

One of the greatest benefits of artificial reefs is that they have lifted the pressure off natural reefs which, over the past few decades, have been over-fished and over-visited. By diverting attention to artificial reefs, natural reefs have now been given a greater chance to repair and to regenerate.”

NEW ORLEANS (AP) — For the first time, federal scientists have found damage to deep sea coral and other marine life on the ocean floor several miles from the blown-out BP well — a strong indication that damage from the spill could be significantly greater than officials had previously acknowledged.

Tests are needed to verify that the coral died from oil that spewed into the Gulf of Mexico after the Deepwater Horizon rig explosion, but the chief scientist who led the government-funded expedition said Friday he was convinced it was related.

In early August, a federal report said that nearly 70 percent of the 170 million gallons of oil that gushed from the well into the sea had dissolved naturally, or was burned, skimmed, dispersed or captured, with almost nothing left to see — at least on top of the water. The report was blasted by scientists.

Most of the Gulf’s bottom is muddy, but coral colonies that pop up every once in a while are vital oases for marine life in the chilly ocean depths.

Coral is essential to the Gulf because it provides a habitat for fish and other organisms such as snails and crabs, making any large-scale death of coral a problem for many species. It might need years, or even decades, to grow back.

Using a robot called Jason II, researchers found the dead coral in an area measuring up to 130 feet by 50 feet, about 4,600 feet under the surface.